I've noticed whenever an update is available for Samsung Health or Galaxy Wearable the heart rate monitor stops working and recording data.
Even after updating the apps on phone they still don't work until I fully reboot the watch.
This means can loose a few days data because the app has not auto updated even though set, you get no notification to update until you go in app and no information advising to restart watch after apps updated on phone.
Does anyone else get similar issues.